DUAL MODE BLUETOOTH MOUSE(BT 4.0 + 2.4GHz): Jelly Comb MS003 dual mode wireless mouse realizes free switches between two devices with one mouse only by only one click. ?Please turn on the "Assistive Touch" on iPad: Setting-Accessibility- Assistive Touch for an iPad usage.? WIDE COMPATIBILITY: Bluetooth mode works with Windows/ Android/ MAC OS system. ?NOTE: BT4.0 System Requirement: Windows 8.0 or above; MacOS 10.10 or above; iPad OS 13 or above/ Android 4.3 or above. Please check or update the operating system before purchase.? SILENT CLICK & HIGH RESPONSIVENESS : Adopted adjustable DPI levels among 1000, 1600 and 2400 to meet different needs. Quiet click allows quiet working environment. AUTO SLEEP MODE: This wireless bluetooth mouse will automatically enter into the sleep mode after a few minutes of inactivity to save power, and can be waken up by clicking any button. one AA battery is required(not included). ERGONOMIC DESIGN: With slim, ergonomic design and smooth frosted surface, this Bluetooth mouse will fit comfortably in your hands, providing an incredible user experience.